I am using genesis 2.1.2 and I installed Types. But the Custom Fields Groups is not working. When I click on create new group it's showing me blank page. If I change the theme to default or to any other then it works but not on GENESIS. is there any reason for this? What should I do?
Did you checked PHP error log?
May be this is happening because of MEMORY LIMITS
Change WP_MAX_MEMORY_LIMIT to 300M in wp-config.php
define( 'WP_MAX_MEMORY_LIMIT', '300M' );